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netfilter: nft_flow_offload: use direct xmit if hardware offload is enabled

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If there is a forward path to reach an ethernet device and hardware
offload is enabled, then use the direct xmit path.

Moreover, store the real device in the direct xmit path info since
software datapath uses dev_hard_header() to push the layer encapsulation
headers while hardware offload refers to the real device.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pablo Neira Ayuso
2021-03-24 02:30:47 +01:00
committed by David S. Miller
parent eeff3000f2
commit 73f97025a9
4 changed files with 23 additions and 3 deletions
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2
include/net/netfilter/nf_flow_table.h
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@@ -131,6 +131,7 @@ struct flow_offload_tuple {
struct dst_entry *dst_cache;
struct {
u32 ifidx;
u32 hw_ifidx;
u8 h_source[ETH_ALEN];
u8 h_dest[ETH_ALEN];
} out;
@@ -188,6 +189,7 @@ struct nf_flow_route {
} in;
struct {
u32 ifindex;
u32 hw_ifindex;
u8 h_source[ETH_ALEN];
u8 h_dest[ETH_ALEN];
} out;